Exchange must be configured in accordance with the security configuration settings based on DOD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.
An XCCDF Rule
Description
<VulnDiscussion>Configuring Exchange to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DOD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the application, including the parameters required to satisfy other security control requirements.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-259712r942450_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure web ports to be ports 80 and 443, as specified by PPSM standards.
In an Exchange Management Shell, run the following cmdlet on the "Default Web Site":
Set-WebBinding -Name 'Default Web Site' -BindingInformation "127.0.0.1:443:" -PropertyName Port -Value 443